Some modern casting issues.. CBitmapPixelAccess::setPosition and itmapPixelAccess::operator++

[GeorgeAAbraham1]

cbitmap.h CBitmapPixelAccess::setPosition and itmapPixelAccess::operator++
Gives compiler error : currentPos = address + y * bytesPerRow;
Expectation, something like.. : currentPos = address + static_cast<__int64>(y) * bytesPerRow;

[scheffle]

Can you please add the complete compiler output and the compiler version when doing such a bug report. That would help enormously.

[GeorgeAAbraham1]

Hi

Sure..

Microsoft Visual Studio Community 2022
Version 17.2.6
VisualStudio.17.Release/17.2.6+32630.192
Microsoft .NET Framework
Version 4.8.03752

Installed Version: Community

Visual C++ 2022 00482-90000-00000-AA939
Microsoft Visual C++ 2022

This is covered in the C++ 17 book.. as a standard change.. it's not a bug.

exact compiler warnings:
Severity Code Description Project File Line Suppression State
Warning C26451 Arithmetic overflow: Using operator '' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '' to avoid overflow (io.2). SineSyn C:\Users\GeorgeAB.FSG\VST_SDK\vst3sdk\vstgui4\vstgui\lib\cbitmap.h 233
Warning C26451 Arithmetic overflow: Using operator '' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '' to avoid overflow (io.2). SineSyn C:\Users\GeorgeAB.FSG\VST_SDK\vst3sdk\vstgui4\vstgui\lib\cbitmap.h 246
Warning C26451 Arithmetic overflow: Using operator '' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '' to avoid overflow (io.2). SineSyn C:\Users\GeorgeAB.FSG\VST_SDK\vst3sdk\vstgui4\vstgui\lib\cbitmap.h 246